The billionaire and other Israeli businessmen are suspected of paying tens of millions of dollars to senior state officials to secure a licence for Simandou, local police said.
According to the country's chamber of mines, more than a million artisanal miners currently work at about 350 sites, producing between 10 and 15 tonnes of gold a year.
Together with reducing Sibanye’s dependence on its aging South African assets, the deal will make the company the world's third largest palladium producer, the company said.
Russian-Canadian Vera Kirikova will become human resources group executive while Simone Niven will assume the corporate relations group executive post.